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Finding the Fourth Proportional to 1,316,468.92, 1,975,417.80 and 558,736.60

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Solution

The fourth proportional to 1,316,468.92, 1,975,417.80 and 558,736.60 is: 838,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,468.92 : 1,975,417.80 = 558,736.60 : x
  2. Step 2: Convert to fraction form
    1,316,468.92/1,975,417.80 = 558,736.60/x
  3. Step 3: Cross multiply
    1,316,468.92x = 1,975,417.80 × 558,736.60
  4. Step 4: Simplify right side
    1,316,468.92x = 1,103,738,225,151.48
  5. Step 5: Solve for x
    x = 1,103,738,225,151.48/1,316,468.92
  6. Step 6: Final answer
    x = 838,408.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.